Why is it colder on one parallel of 55 ° N in winter on the Pacific coast than on the Atlantic coast?

Winter monsoons blow on the coast of the Pacific Ocean from the cold mainland, and westerly winds blow on the coast of the Atlantic Ocean from the not yet cooled Atlantic Ocean.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.